000 02347cam a2200337 a 4500
003 EG-GiCUC
005 20250223032144.0
008 190105s2018 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.12.10.M.Sc.2018.Es.C
100 0 _aEsraa Hashim Abdelmagid Khalifa
245 1 0 _aChemical modification of maize starch and its applications in sewage water treatment and as antimicrobial agent /
_cEsraa Hashim Abdelmagid Khalifa ; Supervised Magdy W. Sabaa , Riham R. Mohamed
246 1 5 _aالتعديل الكيميائي لنمشا الذرة وتطبيقاته في معالجة مياه الصرف الصحي و كعامل مضاد للميكروبات
260 _aCairo :
_bEsraa Hashim Abdelmagid Khalifa ,
_c2018
300 _a93 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Science- Department of Organic Chemistry
520 _aThe presented thesis deals with Maize starch-g-poly(N-vinylimidazole) and Maize starch-g-poly(itaconic acid) that were prepared and characterized by determining its degree of substitution and elucidating its structure by FTIR, NMR, X-ray diffraction and SEM before and after grafting. The effects of initiator concentration, monomer concentration, reaction time and temperature on the graft copolymerization were studied by determining the grafting percentage (%G), grafting efficiency (%GE) and the amount of homopolymer formed (%H). The efficacy of the graft copolymers to uptake heavy metal ions (Cu²⁺, Co²⁺ and Cd²⁺) from their aqueous solutions was also studied. Results showed that the graft copolymers adsorb more metal ions than starch itself. The graft copolymers were found to have antimicrobial activity against Streptococcus pneumonia and Bacillis subtilis as gram-positive and against Escherichia coli as gram-negative bacteria and against Aspergillus flavus and Candida albican as fungi
530 _aIssued also as CD
653 4 _aGraft
653 4 _aStarch
653 4 _aVinylimidazole
700 0 _aMagdy W. Sabaa ,
_eSupervisor
700 0 _aRiham R. Mohamed ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c69432
_d69432